package com.qingcheng.service.impl;

import com.alibaba.dubbo.config.annotation.Reference;
import com.alibaba.dubbo.config.annotation.Service;
import com.alibaba.fastjson.JSON;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.qingcheng.dao.OrderItemMapper;
import com.qingcheng.dao.OrderLogMapper;
import com.qingcheng.dao.OrderMapper;
import com.qingcheng.entity.PageResult;
import com.qingcheng.pojo.order.Order;
import com.qingcheng.pojo.order.OrderItem;
import com.qingcheng.pojo.order.OrderLog;
import com.qingcheng.service.goods.SkuService;
import com.qingcheng.service.order.CartService;
import com.qingcheng.service.order.OrderService;
import com.qingcheng.util.IdWorker;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import tk.mybatis.mapper.entity.Example;

import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.IntStream;

@Service(interfaceClass = OrderService.class)
public class OrderServiceImpl implements OrderService {

    @Autowired
    private OrderMapper orderMapper;

    /**
     * 返回全部记录
     *
     * @return
     */
    @Override
    public List<Order> findAll() {
        return orderMapper.selectAll();
    }

    /**
     * 分页查询
     *
     * @param page 页码
     * @param size 每页记录数
     * @return 分页结果
     */
    @Override
    public PageResult<Order> findPage(int page, int size) {
        PageHelper.startPage(page, size);
        Page<Order> orders = (Page<Order>) orderMapper.selectAll();
        return new PageResult<Order>(orders.getTotal(), orders.getResult());
    }

    /**
     * 条件查询
     *
     * @param searchMap 查询条件
     * @return
     */
    @Override
    public List<Order> findList(Map<String, Object> searchMap) {
        Example example = createExample(searchMap);
        return orderMapper.selectByExample(example);
    }

    /**
     * 分页+条件查询
     *
     * @param searchMap
     * @param page
     * @param size
     * @return
     */
    @Override
    public PageResult<Order> findPage(Map<String, Object> searchMap, int page, int size) {
        PageHelper.startPage(page, size);
        Example example = createExample(searchMap);
        Page<Order> orders = (Page<Order>) orderMapper.selectByExample(example);
        return new PageResult<Order>(orders.getTotal(), orders.getResult());
    }

    /**
     * 根据Id查询
     *
     * @param id
     * @return
     */
    @Override
    public Order findById(String id) {
        return orderMapper.selectByPrimaryKey(id);
    }

    @Autowired
    private CartService cartService;

    @Reference
    private SkuService skuService;

    @Autowired
    private IdWorker idWorker;

    @Autowired
    private OrderItemMapper orderItemMapper;

    @Autowired
    private RabbitTemplate rabbitTemplate;

    /**
     * 新增
     *
     * @param order
     */
    @Override
    @Transactional
    public Map<String, Object> add(Order order) {

        //1.获取选中的购物车
        List<Map<String, Object>> cartList = cartService.findNewOrderItemList(order.getUsername());
        List<OrderItem> orderItemList = cartList.stream().filter(cart -> (boolean) cart.get("checked"))
                .map(cart -> (OrderItem) cart.get("item"))
                .collect(Collectors.toList());

        //2.扣减库存
        if (!skuService.deductionStock(orderItemList)) {
            throw new RuntimeException("库存不足！");
        }
        try {
            //3.保存订单主表
            order.setId(idWorker.nextId() + "");

            IntStream numStream = orderItemList.stream().mapToInt(OrderItem::getNum);
            IntStream moneytStream = orderItemList.stream().mapToInt(OrderItem::getMoney);
            int totalNum = numStream.sum();
            int totalMoney = moneytStream.sum();
            int preMoney = cartService.preferential(order.getUsername());  //满减优惠金额

            order.setTotalNum(totalNum);//总数量
            order.setTotalMoney(totalMoney); //总金额
            order.setPreMoney(preMoney);//优惠金额
            order.setPayMoney(totalMoney - preMoney);//支付金额
            order.setCreateTime(new Date());//订单创建时间
            order.setOrderStatus("0");//订单状态
            order.setPayStatus("0");//支付状态
            order.setConsignStatus("0");//发货状态

            orderMapper.insert(order);


            //4.保存订单明细表
            //打折比例
            double proportion = (double) order.getPayMoney() / totalMoney;

            for (OrderItem orderItem : orderItemList) {
                orderItem.setId(idWorker.nextId() + "");
                orderItem.setOrderId(order.getId());
                orderItem.setPayMoney((int) (orderItem.getMoney() * proportion));

                orderItemMapper.insert(orderItem);
            }

            //int x=1/0;
        } catch (Exception e) {
            e.printStackTrace();
            //发送回滚消息
            rabbitTemplate.convertAndSend("", "queue.skuback", JSON.toJSONString(orderItemList));
            throw new RuntimeException("创建订单失败");
        }

        //5.清除购物车
        cartService.deleteCheckedCart(order.getUsername());

        Map map = new HashMap();
        map.put("ordersn", order.getId());
        map.put("money", order.getPayMoney());
        return map;

    }

    /**
     * 修改
     *
     * @param order
     */
    @Override
    public void update(Order order) {
        orderMapper.updateByPrimaryKeySelective(order);
    }

    /**
     * 删除
     *
     * @param id
     */
    @Override
    public void delete(String id) {
        orderMapper.deleteByPrimaryKey(id);
    }


    @Autowired
    private OrderLogMapper orderLogMapper;

    @Override
    @Transactional
    public void updatePayStatus(String orderId, String transactionId) {
        System.out.println("调用修改订单状态");
        Order order = orderMapper.selectByPrimaryKey(orderId);
        if (order != null && "0".equals(order.getPayStatus())) {
            //修改订单状态等信息
            order.setPayStatus("1");//支付状态
            order.setOrderStatus("1");//订单状态
            order.setUpdateTime(new Date());//修改日期
            order.setPayTime(new Date());//支付日期
            order.setTransactionId(transactionId);//交易流水号
            orderMapper.updateByPrimaryKeySelective(order);//修改

            //记录订单日志
            OrderLog orderLog = new OrderLog();
            orderLog.setId(idWorker.nextId() + "");
            orderLog.setOperater("system");//系统
            orderLog.setOperateTime(new Date());//操作时间
            orderLog.setOrderStatus("1");//订单状态
            orderLog.setPayStatus("1");//支付状态
            orderLog.setRemarks("支付流水号：" + transactionId);//备注
            orderLog.setOrderId(orderId);
            orderLogMapper.insert(orderLog);

        }


    }

    /**
     * 构建查询条件
     *
     * @param searchMap
     * @return
     */
    private Example createExample(Map<String, Object> searchMap) {
        Example example = new Example(Order.class);
        example.setOrderByClause("create_time DESC");
        Example.Criteria criteria = example.createCriteria();
        if (searchMap != null) {
            if (searchMap != null) {
                // 订单id
                if (searchMap.get("id") != null && !"".equals(searchMap.get("id"))) {
                    criteria.andLike("id", "%" + searchMap.get("id") + "%");
                }
                // 支付类型，1、在线支付、0 货到付款
                if (searchMap.get("payType") != null && !"".equals(searchMap.get("payType"))) {
                    criteria.andLike("payType", "%" + searchMap.get("payType") + "%");
                }
                // 物流名称
                if (searchMap.get("shippingName") != null && !"".equals(searchMap.get("shippingName"))) {
                    criteria.andLike("shippingName", "%" + searchMap.get("shippingName") + "%");
                }
                // 物流单号
                if (searchMap.get("shippingCode") != null && !"".equals(searchMap.get("shippingCode"))) {
                    criteria.andLike("shippingCode", "%" + searchMap.get("shippingCode") + "%");
                }
                // 用户名称
                if (searchMap.get("username") != null && !"".equals(searchMap.get("username"))) {
                    criteria.andEqualTo("username", searchMap.get("username"));
                }
                // 买家留言
                if (searchMap.get("buyerMessage") != null && !"".equals(searchMap.get("buyerMessage"))) {
                    criteria.andLike("buyerMessage", "%" + searchMap.get("buyerMessage") + "%");
                }
                // 是否评价
                if (searchMap.get("buyerRate") != null && !"".equals(searchMap.get("buyerRate"))) {
                    criteria.andLike("buyerRate", "%" + searchMap.get("buyerRate") + "%");
                }
                // 收货人
                if (searchMap.get("receiverContact") != null && !"".equals(searchMap.get("receiverContact"))) {
                    criteria.andLike("receiverContact", "%" + searchMap.get("receiverContact") + "%");
                }
                // 收货人手机
                if (searchMap.get("receiverMobile") != null && !"".equals(searchMap.get("receiverMobile"))) {
                    criteria.andLike("receiverMobile", "%" + searchMap.get("receiverMobile") + "%");
                }
                // 收货人地址
                if (searchMap.get("receiverAddress") != null && !"".equals(searchMap.get("receiverAddress"))) {
                    criteria.andLike("receiverAddress", "%" + searchMap.get("receiverAddress") + "%");
                }
                // 订单来源：1:web，2：app，3：微信公众号，4：微信小程序  5 H5手机页面
                if (searchMap.get("sourceType") != null && !"".equals(searchMap.get("sourceType"))) {
                    criteria.andLike("sourceType", "%" + searchMap.get("sourceType") + "%");
                }
                // 交易流水号
                if (searchMap.get("transactionId") != null && !"".equals(searchMap.get("transactionId"))) {
                    criteria.andLike("transactionId", "%" + searchMap.get("transactionId") + "%");
                }
                // 订单状态
                if (searchMap.get("orderStatus") != null && !"".equals(searchMap.get("orderStatus"))) {
                    criteria.andLike("orderStatus", "%" + searchMap.get("orderStatus") + "%");
                }
                // 支付状态
                if (searchMap.get("payStatus") != null && !"".equals(searchMap.get("payStatus"))) {
                    criteria.andLike("payStatus", "%" + searchMap.get("payStatus") + "%");
                }
                // 发货状态
                if (searchMap.get("consignStatus") != null && !"".equals(searchMap.get("consignStatus"))) {
                    criteria.andLike("consignStatus", "%" + searchMap.get("consignStatus") + "%");
                }
                // 是否删除
//            if(searchMap.get("isDelete")!=null && !"".equals(searchMap.get("isDelete"))){
                criteria.andNotEqualTo("isDelete", "1");
//            }

                // 数量合计
                if (searchMap.get("totalNum") != null) {
                    criteria.andEqualTo("totalNum", searchMap.get("totalNum"));
                }
                // 金额合计
                if (searchMap.get("totalMoney") != null) {
                    criteria.andEqualTo("totalMoney", searchMap.get("totalMoney"));
                }
                // 优惠金额
                if (searchMap.get("preMoney") != null) {
                    criteria.andEqualTo("preMoney", searchMap.get("preMoney"));
                }
                // 邮费
                if (searchMap.get("postFee") != null) {
                    criteria.andEqualTo("postFee", searchMap.get("postFee"));
                }
                // 实付金额
                if (searchMap.get("payMoney") != null) {
                    criteria.andEqualTo("payMoney", searchMap.get("payMoney"));
                }
            }
        }
        return example;
    }
}